Banana OG

Banana OG Auto Seeds by Humboldt Seed Company

Banana OG Auto is an autoflowering feminised cannabis seed from Humboldt Seed Company that delivers 25% THC, ripe banana aromas, and resin-drenched buds in roughly 80 days from germination. Rooted in Emerald Triangle genetics, this sativa-dominant three-way cross between Banana OG S1 #21, Mint Jelly Auto, and Banana OG Auto Bx3 was once a clone-only rarity — now available as seeds so you can grow it yourself. Each pack contains 3 seeds.

Banana OG Auto Genetics and Lineage

This strain exists because Humboldt Seed Company spent years stabilising a clone-only favourite into seed form. The genetic backbone is Banana OG S1 #21 — a phenotype selected for its standout banana terpene expression. They crossed it with Mint Jelly Auto for autoflowering capability, then backcrossed three times (Bx3) to lock in the traits that made the original clone so popular. The result is a sativa-dominant auto that actually tastes like its name.

What's worth noting: the S1 designation means the original Banana OG was selfed (pollinated with its own reversed pollen), which preserves the mother's genetic profile more faithfully than a standard cross. That's why the terpene profile stayed so close to the clone-only version — something growers who chased the original for years will appreciate.

Growing Banana OG Auto Seeds

Banana OG Auto runs on autopilot — genuinely one of the more hands-off autos we've come across. No light schedule changes needed, no sexing, no worrying about photoperiod interruptions. Drop the seed, keep conditions reasonable, and she does her thing in about 80 days from germination to chop.

The built-in resistance to powdery mildew is a real bonus, especially if you're growing in a tent where humidity can creep up during late flower. That said — resistance isn't immunity. Keep your airflow sorted and don't let RH sit above 60% in the final weeks. A small oscillating fan and decent extraction will handle it.

Humboldt Seed Company rates the yield as "amazing," and growers back that up. Expect dense, resin-coated colas that pack on weight in the last 2-3 weeks. She performs well indoors and outdoors, though indoor growers with a proper 18/6 or 20/4 light schedule tend to see the best results. If you're running a small tent — say a 60x60 or 80x80 — two or three of these will fill the canopy nicely without getting unmanageable.

The honest limitation: autoflowers don't give you the same control over vegetative growth that photoperiods do. If you stress her early (overwatering, nutrient burn, transplant shock), she won't have time to recover before she starts flowering. Start in the final pot — 11 to 15 litres — and go easy on the feeds for the first two weeks.

Aroma and Flavour Profile of Banana OG Auto

This is where Banana OG Auto earns its name. Crack open a cured jar and you get hit with sweet, ripe banana — not a subtle hint, but a proper banana taffy sweetness that fills the room. It's the kind of smell that makes people lean in and ask "what is that?"

On the exhale, the sweetness gives way to a gassy, diesel undertone. Classic OG fuel notes sit underneath the fruit, adding depth and complexity. The combination sounds odd on paper but works brilliantly in practice — sweet on the inhale, fuel on the way out. According to research published in Molecules, cannabis terpene profiles vary significantly between cultivars, and the specific combination of fruity esters with myrcene and limonene-dominant profiles creates the distinctive "banana + gas" character found in OG-lineage strains (PMC7763918).

One thing to flag: this strain is pungent during the final weeks of flower. If discretion matters, a carbon filter isn't optional — it's the bare minimum. The banana terps are loud.

What to Expect from Banana OG Auto Buds

At 25% average THC, Banana OG Auto sits firmly in the heavy-hitter category. The sativa dominance comes through in the effect — uplifting, sociable, the kind of smoke you'd reach for before meeting up with mates rather than before bed. Humboldt Seed Company describes it as delivering "fun times and uplifting vibes," and that tracks with what we've heard from growers who've run it.

The buds themselves are shiny and absolutely caked in resin. If you're interested in making extracts or hash, this strain is a strong candidate — the trichome coverage is exceptional. Even after a standard dry and cure, the buds stay sticky to the touch.

A few puffs go a long way at this THC level. If you're newer to high-THC varieties, pace yourself. Start with a small amount and give it 10-15 minutes before deciding you need more.

Banana OG Auto vs Other Autoflowering Strains

How does Banana OG Auto stack up against other autos in the Humboldt Seed Company catalogue? Here's a quick comparison to help you decide.

The 25% THC puts Banana OG Auto above most autos on the market, which typically sit in the 18-22% range. The terpene profile is also more distinctive than your average auto — most lean generic "skunky" or "earthy," while this one has a genuinely unique banana-fuel combination that stands out in a lineup.

If you want something with a similar Humboldt pedigree but different flavour, Blueberry Muffin Auto is worth a look for its berry-forward terpenes. But for raw THC and resin production, Banana OG Auto is hard to beat in the autoflower category.

Why Banana OG Auto Seeds Belong in Your Next Grow

Here's the thing about clone-only strains: they're brilliant if you know someone who has the cut. If you don't, you're out of luck. Humboldt Seed Company solved that problem by spending years backcrossing and stabilising Banana OG into autoflowering seed form. You get the same terpene profile and potency that built the clone's reputation, without needing to know a guy who knows a guy in Humboldt County.

The 80-day seed-to-harvest cycle means you can run multiple cycles per year, even outdoors in shorter seasons. Indoors, you're looking at roughly 3 harvests in the time a single photoperiod run would give you one. And because it's autoflowering, you can run it alongside photoperiod plants on an 18/6 schedule without any conflicts.

We've been selling seeds since 1999, and the shift in autoflower quality over the past decade has been dramatic. Five years ago, we'd have said "go photoperiod if you want real potency." With strains like Banana OG Auto hitting 25% THC and producing genuinely impressive resin, that advice no longer holds. Autos have caught up — and in some cases, they've overtaken their photoperiod counterparts for convenience without sacrificing quality.

How to Grow Banana OG Auto Seeds

1. Germinate your Banana OG Auto seeds using the paper towel method or directly in a small plug of moist coco or soil. Taproots typically emerge within 24-72 hours.
2. Plant the germinated seed directly into its final container — 11 to 15 litres is the sweet spot. Autoflowers don't respond well to transplanting, so skip the small starter pots.
3. Set your light schedule to 18/6 or 20/4. Banana OG Auto doesn't need a light change to trigger flowering — she'll flip on her own around week 3-4.
4. Keep feeds light during the first two weeks. Seedlings don't need much, and overfeeding early is the number one way to stunt an autoflower's growth.
5. Increase nutrients gradually as she enters pre-flower. A balanced grow feed transitioning to a bloom formula works well. Watch for the first pistils around day 21-28.
6. Maintain humidity below 60% during late flower to complement her natural powdery mildew resistance. Good airflow is critical — a clip fan pointed at the canopy does the job.
7. Harvest around day 80 from germination, or when trichomes show mostly milky with some amber under a jeweller's loupe. Dry slowly in a dark room at 18-20°C and 55-60% RH for 7-10 days, then cure in glass jars for at least 2 weeks.

Frequently Asked Questions

Last updated: April 2026